IUCN Red List Assessment
Red List Category
Red List Criteria
Meijaard, E., Nijman, V. & Supriatna, J.
Mittermeier, R.A. & Rylands, A.B. (Primate Red List Authority)
The species is listed as Endangered as it has undergone extensive population reductions across its range, and ongoing hunting and habitat destruction continue to threaten most populations. Numbers have declined by more than 50% (but probably less that 80%) over the past 3 generations (approximately 36-40 years).
- 1994Vulnerable(Groombridge 1994)
- 1990Vulnerable(IUCN 1990)
- 1988Vulnerable(IUCN Conservation Monitoring Centre 1988)
- 1986Vulnerable(IUCN Conservation Monitoring Centre 1986)